move passing stage1 compile error tests to stage2

test/cases/compile_errors/implicit_semicolon-while_statement.zig

@@ -0,0 +1,12 @@
+export fn entry() void {
+    while(true) {}
+    var good = {};
+    while(true) 1
+    var bad = {};
+}
+
+// error
+// backend=stage2
+// target=native
+//
+// :4:18: error: expected ';' or 'else' after statement