llgo/ssa: float Const fix; cl: replaceGoName runtime => llgo/internal/runtime

cl/import.go

@@ -359,8 +359,11 @@ const (
 func (p *context) varName(pkg *types.Package, v *ssa.Global) (vName string, vtype int) {
 	name := llssa.FullName(pkg, v.Name())
 	if v, ok := p.link[name]; ok {
-		if strings.HasPrefix(v, "py.") {
-			return v[3:], pyVar
+		if pos := strings.IndexByte(v, '.'); pos >= 0 {
+			if pos == 2 && v[0] == 'p' && v[1] == 'y' {
+				return v[3:], pyVar
+			}
+			return replaceGoName(v, pos), goVar
 		}
 		return v, cVar
 	}
@@ -405,6 +408,14 @@ func pkgKindByPath(pkgPath string) int {
 	return PkgNormal
 }
 
+func replaceGoName(v string, pos int) string {
+	switch v[:pos] {
+	case "runtime":
+		return "github.com/goplus/llgo/internal/runtime" + v[pos:]
+	}
+	return v
+}
+
 // -----------------------------------------------------------------------------
 
 const (