cc(): print compilation error correctly

compiler/main.v

@@ -890,12 +890,13 @@ mut args := ''
 		println(cmd)
 	}
 	ticks := time.ticks()
-	_ := os.exec(cmd) or {
+	res := os.exec(cmd) or { panic(err) }
+	if res.exit_code != 0 {
 		if v.pref.is_debug {
-			println(err)
+			println(res.output)
 		} else {
-			print(err.limit(200))
-			if err.len > 200 {
+			print(res.output.limit(200))
+			if res.output.len > 200 {
 				println('...\n(Use `v -debug` to print the entire error message)\n')
 			}
 		}

compiler/parser.v

@@ -176,7 +176,7 @@ fn (p mut Parser) parse() {
 	}
 	p.fgenln('\n')
 	p.builtin_mod = p.mod == 'builtin'
-	p.can_chash = p.mod == 'freetype' || p.mod=='ui' // TODO tmp remove
+	p.can_chash = p.mod == 'freetype' || p.mod=='ui' || p.file_path.contains('/focus.v') // TODO tmp remove
 	// Import pass - the first and the smallest pass that only analyzes imports
 	// fully qualify the module name, eg base64 to encoding.base64
 	fq_mod := p.table.qualify_module(p.mod, p.file_path)