### Godot version

v4.1.dev.custom_build.a7276f1ce

### System information

Win10, AMD 2600, GeForce GTX 1060, Vulkan API 1.3.205

### Issue description

I can't get correct color data from an array of source_color type.
The color data is saved as **Color** in the file:
`shader_parameter/palette = [Color (1, 0, 0, 1), Color (0, 1, 0, 1), Color (0, 0, 1, 1)]`
Shouldn't it be saved as PackedColorArray?


### Steps to reproduce

1.Declare an array of source_color type.
2.Set colors.

### Minimal reproduction project

[shadertest.zip](https://github.com/godotengine/godot/files/11246504/shadertest.zip)

found = true;
						break;
					}
				}
				if (found) {
					continue;
				}
				ScriptLanguage::CodeCompletionOption option(E.key, ScriptLanguage::CODE_COMPLETION_KIND_FUNCTION);
				r_options->push_back(option);
			}
			return OK;
		} break;
		case COMPLETION_IDENTIFIER:
		case COMPLETION_FUNCTION_CALL: {
			bool comp_ident = completion_type == COMPLETION_IDENTIFIER;
			HashMap<String, ScriptLanguage::CodeCompletionKind> matches;
			StringName skip_function;
			BlockNode *block = completion_block;
			if (completion_class == TAG_GLOBAL) {
				while (block) {
					if (comp_ident) {
						for (const KeyValue<StringName, BlockNode::Variable> &E : block->variables) {
							if (E.value.line < completion_line) {
								matches.insert(E.key, ScriptLanguage::CODE_COMPLETION_KIND_VARIABLE);
							}
						}
					}
					if (block->parent_function) {
						if (comp_ident) {
							for (int i = 0; i < block->parent_function->arguments.size(); i++) {