Fix tagged template start to include tag (#714)

Co-authored-by: 강동윤 <kdy1997.dev@gmail.com>

ecmascript/parser/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "swc_ecma_parser"
-version = "0.21.1"
+version = "0.21.2"
 authors = ["강동윤 <kdy1997.dev@gmail.com>"]
 license = "Apache-2.0/MIT"
 repository = "https://github.com/swc-project/swc.git"

ecmascript/parser/src/parser/expr.rs

@@ -776,9 +776,8 @@ impl<'a, I: Tokens> Parser<'a, I> {
         tag: Box<Expr>,
         type_params: Option<TsTypeParamInstantiation>,
     ) -> PResult<'a, TaggedTpl> {
-        let start = tag.span().lo();
+        let tagged_tpl_start = tag.span().lo();
         trace_cur!(parse_tagged_tpl);
-        let start = cur_pos!();
 
         assert_and_bump!('`');
 
@@ -786,7 +785,7 @@ impl<'a, I: Tokens> Parser<'a, I> {
 
         expect!('`');
 
-        let span = span!(start);
+        let span = span!(tagged_tpl_start);
         Ok(TaggedTpl {
             span,
             tag,

ecmascript/parser/tests/typescript/type-arguments/tagged-template-no-asi/input.ts.json

@@ -23,7 +23,7 @@
         "callee": {
           "type": "TaggedTemplateExpression",
           "span": {
-            "start": 9,
+            "start": 4,
             "end": 11,
             "ctxt": 0
           },

ecmascript/parser/tests/typescript/type-arguments/tagged-template/input.ts.json

@@ -16,7 +16,7 @@
       "expression": {
         "type": "TaggedTemplateExpression",
         "span": {
-          "start": 4,
+          "start": 0,
           "end": 6,
           "ctxt": 0
         },