remove type:string

Author: Zxilly

src/cmd/compile/internal/gc/obj.go

@@ -191,9 +191,12 @@ func dumpGlobalConst(n *ir.Name) {
 t = types.Types[types.TSTRING]
 }
 } else {
-// If the type of the constant is an instantiated generic, we need to emit
-// that type so the linker knows about it. See issue 51245.
-_ = reflectdata.TypeLinksym(t)
+if t.IsInteger() {
+// If the type of the constant is an instantiated generic, we need to emit
+// that type so the linker knows about it. See issue 51245.
+_ = reflectdata.TypeLinksym(t)
+}
+// For const string, type:string isn't the real type.
 }
 
 if t.IsInteger() {