parser: fix JS functions starting with caps

vlib/v/gen/js/tests/js.js

@@ -1,5 +1,5 @@
-// V_COMMIT_HASH 2943bdc
-// V_CURRENT_COMMIT_HASH ad5deef
+// V_COMMIT_HASH 11e6734
+// V_CURRENT_COMMIT_HASH 99c70cf
 // Generated by the V compiler
 
 "use strict";
@@ -187,17 +187,18 @@ const main = (function (hl) {
 	/* program entry point */
 	(async function() {
 		builtin.println("Hello from V.js!");
+		builtin.println(Math.atan2(1, 0));
 		/** @type {number} */
 		let a = 1;
 		a *= 2;
 		a += 3;
 		builtin.println(a);
 		/** @type {hl["Aaa"]["prototype"]} */
-		const b = new hl.Aaa({});
+		let b = new hl.Aaa({});
 		b.update("an update");
 		builtin.println(b);
 		/** @type {Foo} */
-		const c = new Foo({
+		let c = new Foo({
 			a: new hl.Aaa({})
 		});
 		c.a.update("another update");

vlib/v/gen/js/tests/js.v

@@ -1,6 +1,7 @@
 import hello as hl
 
 fn JS.alert(arg string)
+fn JS.Math.atan2(f64, f64) f64
 
 const (
     i_am_a_const = 21214
@@ -8,6 +9,7 @@ const (
 )
 
 struct Foo {
+mut:
     a hl.Aaa
 }
 
@@ -29,17 +31,18 @@ fn class(extends string, instanceof int) {
 
 fn main() {
     println('Hello from V.js!')
+    println(JS.Math.atan2(1, 0))
 
     mut a := 1
     a *= 2
     a += 3
     println(a) // TODO: Handle string interpolation
 
-    b := hl.Aaa{}
+    mut b := hl.Aaa{}
     b.update('an update')
     println(b)
 
-    c := Foo{ hl.Aaa{} }
+    mut c := Foo{ hl.Aaa{} }
     c.a.update('another update')
     println(c)
 

vlib/v/parser/parser.v

@@ -890,7 +890,7 @@ pub fn (mut p Parser) name_expr() ast.Expr {
 	} else if p.peek_tok.kind == .lcbr && !p.inside_match && !p.inside_match_case && !p.inside_if &&
 		!p.inside_for {
 		return p.struct_init(false) // short_syntax: false
-	} else if p.peek_tok.kind == .dot && (p.tok.lit[0].is_capital() && !known_var) {
+	} else if p.peek_tok.kind == .dot && (p.tok.lit[0].is_capital() && !known_var && language == .v) {
 		// `Color.green`
 		mut enum_name := p.check_name()
 		if mod != '' {