Fix incorrect handling of boolean flags for builtin commands (#11492)

# Description
Possible fix of #11456
This PR fixes a bug where builtin commands did not respect the logic of
dynamically passed boolean flags. The reason is
[has_flag](6f59abaf43/crates/nu-protocol/src/ast/call.rs (L204C5-L212C6))
method did not evaluate and take into consideration expression used with
flag.

To address this issue a solution is proposed:
1. `has_flag` method is moved to `CallExt` and new logic to evaluate
expression and check if it is a boolean value is added
2. `has_flag_const` method is added to `CallExt` which is a constant
version of `has_flag`
3. `has_named` method is added to `Call` which is basically the old
logic of `has_flag`
4. All usages of `has_flag` in code are updated, mostly to pass
`engine_state` and `stack` to new `has_flag`. In `run_const` commands it
is replaced with `has_flag_const`. And in a few select places: parser,
`to nuon` and `into string` old logic via `has_named` is used.

# User-Facing Changes
Explicit values of boolean flags are now respected in builtin commands.
Before:

![image](https://github.com/nushell/nushell/assets/17511668/f9fbabb2-3cfd-43f9-ba9e-ece76d80043c)
After:

![image](https://github.com/nushell/nushell/assets/17511668/21867596-2075-437f-9c85-45563ac70083)

Another example:
Before:

![image](https://github.com/nushell/nushell/assets/17511668/efdbc5ca-5227-45a4-ac5b-532cdc2bbf5f)
After:

![image](https://github.com/nushell/nushell/assets/17511668/2907d5c5-aa93-404d-af1c-21cdc3d44646)


# Tests + Formatting
Added test reproducing some variants of original issue.

crates/nu-cmd-dataframe/src/dataframe/eager/append.rs

@@ -110,7 +110,7 @@ fn command(
 ) -> Result<PipelineData, ShellError> {
     let other: Value = call.req(engine_state, stack, 0)?;
 
-    let axis = if call.has_flag("col") {
+    let axis = if call.has_flag(engine_state, stack, "col")? {
         Axis::Column
     } else {
         Axis::Row

crates/nu-cmd-dataframe/src/dataframe/eager/drop_duplicates.rs

@@ -92,7 +92,7 @@ fn command(
 
     let subset_slice = subset.as_ref().map(|cols| &cols[..]);
 
-    let keep_strategy = if call.has_flag("last") {
+    let keep_strategy = if call.has_flag(engine_state, stack, "last")? {
         UniqueKeepStrategy::Last
     } else {
         UniqueKeepStrategy::First

crates/nu-cmd-dataframe/src/dataframe/eager/dummies.rs

@@ -1,4 +1,5 @@
 use super::super::values::NuDataFrame;
+use nu_engine::CallExt;
 use nu_protocol::{
     ast::Call,
     engine::{Command, EngineState, Stack},
@@ -78,12 +79,12 @@ impl Command for Dummies {
 }
 
 fn command(
-    _engine_state: &EngineState,
-    _stack: &mut Stack,
+    engine_state: &EngineState,
+    stack: &mut Stack,
     call: &Call,
     input: PipelineData,
 ) -> Result<PipelineData, ShellError> {
-    let drop_first: bool = call.has_flag("drop-first");
+    let drop_first: bool = call.has_flag(engine_state, stack, "drop-first")?;
     let df = NuDataFrame::try_from_pipeline(input, call.head)?;
 
     df.as_ref()

crates/nu-cmd-dataframe/src/dataframe/eager/open.rs

@@ -139,7 +139,7 @@ fn from_parquet(
     stack: &mut Stack,
     call: &Call,
 ) -> Result<Value, ShellError> {
-    if call.has_flag("lazy") {
+    if call.has_flag(engine_state, stack, "lazy")? {
         let file: String = call.req(engine_state, stack, 0)?;
         let args = ScanArgsParquet {
             n_rows: None,
@@ -238,7 +238,7 @@ fn from_ipc(
     stack: &mut Stack,
     call: &Call,
 ) -> Result<Value, ShellError> {
-    if call.has_flag("lazy") {
+    if call.has_flag(engine_state, stack, "lazy")? {
         let file: String = call.req(engine_state, stack, 0)?;
         let args = ScanArgsIpc {
             n_rows: None,
@@ -363,12 +363,12 @@ fn from_csv(
     call: &Call,
 ) -> Result<Value, ShellError> {
     let delimiter: Option<Spanned<String>> = call.get_flag(engine_state, stack, "delimiter")?;
-    let no_header: bool = call.has_flag("no-header");
+    let no_header: bool = call.has_flag(engine_state, stack, "no-header")?;
     let infer_schema: Option<usize> = call.get_flag(engine_state, stack, "infer-schema")?;
     let skip_rows: Option<usize> = call.get_flag(engine_state, stack, "skip-rows")?;
     let columns: Option<Vec<String>> = call.get_flag(engine_state, stack, "columns")?;
 
-    if call.has_flag("lazy") {
+    if call.has_flag(engine_state, stack, "lazy")? {
         let file: String = call.req(engine_state, stack, 0)?;
         let csv_reader = LazyCsvReader::new(file);
 

crates/nu-cmd-dataframe/src/dataframe/eager/sample.rs

@@ -88,8 +88,8 @@ fn command(
     let seed: Option<u64> = call
         .get_flag::<i64>(engine_state, stack, "seed")?
         .map(|val| val as u64);
-    let replace: bool = call.has_flag("replace");
-    let shuffle: bool = call.has_flag("shuffle");
+    let replace: bool = call.has_flag(engine_state, stack, "replace")?;
+    let shuffle: bool = call.has_flag(engine_state, stack, "shuffle")?;
 
     let df = NuDataFrame::try_from_pipeline(input, call.head)?;
 

crates/nu-cmd-dataframe/src/dataframe/eager/to_csv.rs

@@ -70,7 +70,7 @@ fn command(
 ) -> Result<PipelineData, ShellError> {
     let file_name: Spanned<PathBuf> = call.req(engine_state, stack, 0)?;
     let delimiter: Option<Spanned<String>> = call.get_flag(engine_state, stack, "delimiter")?;
-    let no_header: bool = call.has_flag("no-header");
+    let no_header: bool = call.has_flag(engine_state, stack, "no-header")?;
 
     let mut df = NuDataFrame::try_from_pipeline(input, call.head)?;
 

crates/nu-cmd-dataframe/src/dataframe/eager/to_nu.rs

@@ -100,7 +100,7 @@ fn dataframe_command(
     input: Value,
 ) -> Result<PipelineData, ShellError> {
     let rows: Option<usize> = call.get_flag(engine_state, stack, "rows")?;
-    let tail: bool = call.has_flag("tail");
+    let tail: bool = call.has_flag(engine_state, stack, "tail")?;
 
     let df = NuDataFrame::try_from_value(input)?;
 

crates/nu-cmd-dataframe/src/dataframe/lazy/join.rs

@@ -171,9 +171,9 @@ impl Command for LazyJoin {
         call: &Call,
         input: PipelineData,
     ) -> Result<PipelineData, ShellError> {
-        let left = call.has_flag("left");
-        let outer = call.has_flag("outer");
-        let cross = call.has_flag("cross");
+        let left = call.has_flag(engine_state, stack, "left")?;
+        let outer = call.has_flag(engine_state, stack, "outer")?;
+        let cross = call.has_flag(engine_state, stack, "cross")?;
 
         let how = if left {
             JoinType::Left

crates/nu-cmd-dataframe/src/dataframe/lazy/sort_by_expr.rs

@@ -107,8 +107,8 @@ impl Command for LazySortBy {
         let vals: Vec<Value> = call.rest(engine_state, stack, 0)?;
         let value = Value::list(vals, call.head);
         let expressions = NuExpression::extract_exprs(value)?;
-        let nulls_last = call.has_flag("nulls-last");
-        let maintain_order = call.has_flag("maintain-order");
+        let nulls_last = call.has_flag(engine_state, stack, "nulls-last")?;
+        let maintain_order = call.has_flag(engine_state, stack, "maintain-order")?;
 
         let reverse: Option<Vec<bool>> = call.get_flag(engine_state, stack, "reverse")?;
         let reverse = match reverse {

crates/nu-cmd-dataframe/src/dataframe/series/cumulative.rs

@@ -103,7 +103,7 @@ fn command(
     input: PipelineData,
 ) -> Result<PipelineData, ShellError> {
     let cum_type: Spanned<String> = call.req(engine_state, stack, 0)?;
-    let reverse = call.has_flag("reverse");
+    let reverse = call.has_flag(engine_state, stack, "reverse")?;
 
     let df = NuDataFrame::try_from_pipeline(input, call.head)?;
     let series = df.as_series(call.head)?;

crates/nu-cmd-dataframe/src/dataframe/series/date/as_date.rs

@@ -64,7 +64,7 @@ fn command(
     input: PipelineData,
 ) -> Result<PipelineData, ShellError> {
     let format: String = call.req(engine_state, stack, 0)?;
-    let not_exact = call.has_flag("not-exact");
+    let not_exact = call.has_flag(engine_state, stack, "not-exact")?;
 
     let df = NuDataFrame::try_from_pipeline(input, call.head)?;
     let series = df.as_series(call.head)?;

crates/nu-cmd-dataframe/src/dataframe/series/date/as_datetime.rs

@@ -128,7 +128,7 @@ fn command(
     input: PipelineData,
 ) -> Result<PipelineData, ShellError> {
     let format: String = call.req(engine_state, stack, 0)?;
-    let not_exact = call.has_flag("not-exact");
+    let not_exact = call.has_flag(engine_state, stack, "not-exact")?;
 
     let df = NuDataFrame::try_from_pipeline(input, call.head)?;
     let series = df.as_series(call.head)?;

crates/nu-cmd-dataframe/src/dataframe/series/indexes/arg_sort.rs

@@ -1,5 +1,6 @@
 use super::super::super::values::{Column, NuDataFrame};
 
+use nu_engine::CallExt;
 use nu_protocol::{
     ast::Call,
     engine::{Command, EngineState, Stack},
@@ -92,18 +93,18 @@ impl Command for ArgSort {
 }
 
 fn command(
-    _engine_state: &EngineState,
-    _stack: &mut Stack,
+    engine_state: &EngineState,
+    stack: &mut Stack,
     call: &Call,
     input: PipelineData,
 ) -> Result<PipelineData, ShellError> {
     let df = NuDataFrame::try_from_pipeline(input, call.head)?;
 
     let sort_options = SortOptions {
-        descending: call.has_flag("reverse"),
-        nulls_last: call.has_flag("nulls-last"),
+        descending: call.has_flag(engine_state, stack, "reverse")?,
+        nulls_last: call.has_flag(engine_state, stack, "nulls-last")?,
         multithreaded: true,
-        maintain_order: call.has_flag("maintain-order"),
+        maintain_order: call.has_flag(engine_state, stack, "maintain-order")?,
     };
 
     let mut res = df

crates/nu-cmd-dataframe/src/dataframe/series/unique.rs

@@ -114,8 +114,8 @@ fn command_lazy(
     call: &Call,
     lazy: NuLazyFrame,
 ) -> Result<PipelineData, ShellError> {
-    let last = call.has_flag("last");
-    let maintain = call.has_flag("maintain-order");
+    let last = call.has_flag(engine_state, stack, "last")?;
+    let maintain = call.has_flag(engine_state, stack, "maintain-order")?;
 
     let subset: Option<Value> = call.get_flag(engine_state, stack, "subset")?;
     let subset = match subset {