Add detection of dynamic import call

Fixes #470

TypeScript.YAML-tmLanguage

@@ -1456,6 +1456,8 @@ repository:
       - include: '#support-objects'
       - include: '#object-identifiers'
       - include: '#punctuation-accessor'
+      - name: keyword.operator.expression.import.ts
+        match: (?![\.\$])\bimport(?=\s*[\(]\s*[\"\'\`])
       - name: entity.name.function.ts
         match: ([_$[:alpha:]][_$[:alnum:]]*)
     - include: '#comment'

TypeScript.tmLanguage

@@ -4029,6 +4029,12 @@
                 <key>include</key>
                 <string>#punctuation-accessor</string>
               </dict>
+              <dict>
+                <key>name</key>
+                <string>keyword.operator.expression.import.ts</string>
+                <key>match</key>
+                <string>(?![\.\$])\bimport(?=\s*[\(]\s*[\"\'\`])</string>
+              </dict>
               <dict>
                 <key>name</key>
                 <string>entity.name.function.ts</string>

TypeScriptReact.tmLanguage

@@ -4033,6 +4033,12 @@
                 <key>include</key>
                 <string>#punctuation-accessor</string>
               </dict>
+              <dict>
+                <key>name</key>
+                <string>keyword.operator.expression.import.tsx</string>
+                <key>match</key>
+                <string>(?![\.\$])\bimport(?=\s*[\(]\s*[\"\'\`])</string>
+              </dict>
               <dict>
                 <key>name</key>
                 <string>entity.name.function.tsx</string>

tests/baselines/Issue470.baseline.txt

@@ -0,0 +1,38 @@
+original file
+-----------------------------------
+var x = await import("./file1");
+-----------------------------------
+
+Grammar: TypeScript.tmLanguage
+-----------------------------------
+>var x = await import("./file1");
+ ^^^
+ source.ts meta.var.expr.ts storage.type.ts
+    ^
+    source.ts meta.var.expr.ts
+     ^
+     source.ts meta.var.expr.ts meta.var-single-variable.expr.ts meta.definition.variable.ts variable.other.readwrite.ts
+      ^
+      source.ts meta.var.expr.ts meta.var-single-variable.expr.ts
+       ^
+       source.ts meta.var.expr.ts keyword.operator.assignment.ts
+        ^
+        source.ts meta.var.expr.ts
+         ^^^^^
+         source.ts meta.var.expr.ts keyword.control.flow.ts
+              ^
+              source.ts meta.var.expr.ts
+               ^^^^^^
+               source.ts meta.var.expr.ts meta.function-call.ts keyword.operator.expression.import.ts
+                     ^
+                     source.ts meta.var.expr.ts meta.brace.round.ts
+                      ^
+                      source.ts meta.var.expr.ts string.quoted.double.ts punctuation.definition.string.begin.ts
+                       ^^^^^^^
+                       source.ts meta.var.expr.ts string.quoted.double.ts
+                              ^
+                              source.ts meta.var.expr.ts string.quoted.double.ts punctuation.definition.string.end.ts
+                               ^
+                               source.ts meta.var.expr.ts meta.brace.round.ts
+                                ^
+                                source.ts punctuation.terminator.statement.ts

tests/cases/Issue470.ts

@@ -0,0 +1 @@
+var x = await import("./file1");