Fix missing dot in import.defer/import.source codegen

crates/oxc_codegen/src/gen.rs

@@ -2056,6 +2056,7 @@ impl GenExpr for ImportExpression<'_> {
             p.add_source_mapping(self.span);
             p.print_str("import");
             if let Some(phase) = self.phase {
+                p.print_ascii_byte(b'.');
                 p.print_str(phase.as_str());
             }
             p.print_ascii_byte(b'(');

crates/oxc_codegen/tests/integration/esbuild.rs

@@ -722,7 +722,17 @@ fn test_import() {
     test("import(/* before */ foo)", "import(\n\t/* before */\n\tfoo\n);\n");
     test("import(/* before */ 'foo')", "import(\n\t/* before */\n\t\"foo\"\n);\n");
     test("import(foo /* after */)", "import(\n\tfoo\n\t/* after */\n);\n");
-    test("import('foo' /* after */)", "import(\n\t\"foo\"\n\t/* after */\n);\n");
+    test("import('foo' /* after */)", "import(
+	\"foo\"
+	/* after */
+);
+");
+
+    // Test import.defer and import.source phases
+    test("import.defer(\"foo\");", "import.defer(\"foo\");
+");
+    test("import.source(\"bar\");", "import.source(\"bar\");
+");
 }
 
 #[test]