Don't require ; to have space after in comments

asm.js

@@ -58,7 +58,8 @@ class Tokenizer {
         this.buffer.push(...src);
         let token;
         while (token = this.next()) {
-            if (token == this.comment_start)
+            if (token.string == undefined
+				&& token.startsWith(this.comment_start))
                 this.comment = true;
             else if (this.comment && token == LINE_END)
                 this.comment = false;
@@ -522,17 +523,13 @@ class Parser {
 
     token_global_init(token) {
         if (token == LINE_END) {
-            console.error(
-                "ERROR: Unexpected newline in .global: expected"
-                    + " initial value");
-            this.global = undefined;
-            this.global_name = undefined;
-            this.state = State.TOP;
+			this.global.init = 0;
         } else {
             const value = this.integer(token) ?? console.error(
                 `ERROR: Unexpected token ${token} in .global: expected`
                     + " initial value");
             this.global.init = value;
+		}
         const action = {
             type: Action.GLOBAL,
             global: { [this.global_name]: this.global }
@@ -542,7 +539,6 @@ class Parser {
         this.state = State.TOP;
         return action;
     }
-    }
 
     token_at_mem(token) {
         this.at = { mem: token };