Remove shape-directed import pattern parsing (#7570)

crates/nu-protocol/src/ast/call.rs

@@ -18,6 +18,8 @@ pub struct Call {
     pub arguments: Vec<Argument>,
     pub redirect_stdout: bool,
     pub redirect_stderr: bool,
+    /// this field is used by the parser to pass additional command-specific information
+    pub parser_info: Vec<Expression>,
 }
 
 impl Call {
@@ -28,6 +30,7 @@ impl Call {
             arguments: vec![],
             redirect_stdout: true,
             redirect_stderr: false,
+            parser_info: vec![],
         }
     }
 
@@ -67,6 +70,10 @@ impl Call {
         self.arguments.push(Argument::Positional(positional));
     }
 
+    pub fn add_parser_info(&mut self, info: Expression) {
+        self.parser_info.push(info);
+    }
+
     pub fn add_unknown(&mut self, unknown: Expression) {
         self.arguments.push(Argument::Unknown(unknown));
     }
@@ -99,6 +106,10 @@ impl Call {
         self.positional_iter().count()
     }
 
+    pub fn parser_info_nth(&self, i: usize) -> Option<&Expression> {
+        self.parser_info.get(i)
+    }
+
     pub fn has_flag(&self, flag_name: &str) -> bool {
         for name in self.named_iter() {
             if flag_name == name.0.item {