[BUG] Diagnostic ResourceAlreadyImported Not Reported Since v0.94

[martinezlc99]

Describe the bug
Since v0.94, aka this works with v0.93.1, robotcode stopped reporting ResourceAlreadyImported. I have tried a few of the diagnostics errors here

robotcode/packages/robot/src/robotcode/robot/diagnostics/errors.py

Lines 7 to 42 in 6022e91

	class Error:
	VARIABLE_NOT_FOUND = "VariableNotFound"
	ENVIRONMENT_VARIABLE_NOT_FOUND = "EnvironmentVariableNotFound"
	KEYWORD_NOT_FOUND = "KeywordNotFound"
	LIBRARY_CONTAINS_NO_KEYWORDS = "LibraryContainsNoKeywords"
	POSSIBLE_CIRCULAR_IMPORT = "PossibleCircularImport"
	RESOURCE_EMPTY = "ResourceEmpty"
	IMPORT_CONTAINS_ERRORS = "ImportContainsErrors"
	RECURSIVE_IMPORT = "RecursiveImport"
	RESOURCE_ALREADY_IMPORTED = "ResourceAlreadyImported"
	VARIABLES_ALREADY_IMPORTED = "VariablesAlreadyImported"
	LIBRARY_ALREADY_IMPORTED = "LibraryAlreadyImported"
	LIBRARY_OVERRIDES_BUILTIN = "LibraryOverridesBuiltIn"
	DEPRECATED_KEYWORD = "DeprecatedKeyword"
	KEYWORD_CONTAINS_ERRORS = "KeywordContainsErrors"
	RESERVED_KEYWORD = "ReservedKeyword"
	PRIVATE_KEYWORD = "PrivateKeyword"
	INCORRECT_USE = "IncorrectUse"
	KEYWORD_NAME_EMPTY = "KeywordNameEmpty"
	CODE_UNREACHABLE = "CodeUnreachable"
	TESTCASE_NAME_EMPTY = "TestCaseNameEmpty"
	KEYWORD_CONTAINS_NORMAL_AND_EMBBEDED_ARGUMENTS = "KeywordContainsNormalAndEmbbededArguments"
	DEPRECATED_HYPHEN_TAG = "DeprecatedHyphenTag"
	DEPRECATED_RETURN_SETTING = "DeprecatedReturnSetting"
	DEPRECATED_FORCE_TAG = "DeprecatedForceTag"
	IMPORT_REQUIRES_VALUE = "ImportRequiresValue"
	KEYWORD_ERROR = "KeywordError"
	MULTIPLE_KEYWORDS = "MultipleKeywords"
	CONFLICTING_LIBRARY_KEYWORDS = "ConflictingLibraryKeywords"
	INVALID_HEADER = "InvalidHeader"
	DEPRECATED_HEADER = "DeprecatedHeader"
	OVERRIDDEN_BY_COMMANDLINE = "OverriddenByCommandLine"
	VARIABLE_ALREADY_DEFINED = "VariableAlreadyDefined"
	VARIABLE_OVERRIDDEN = "VariableOverridden"
	MODEL_ERROR = "ModelError"
	TOKEN_ERROR = "TokenError"

and they appeared to be ok, but I have not done an exhaustive test

Steps To Reproduce
Steps to reproduce the behavior:

1. Import the same resource file twice in a row
2. Observe no ResourceAlreadyImported
3. Also, when a duplicate resource exists, the control/command + click to go to the definition does not work. For non duplicate resource files, this works.

I'll continue to try to debug, but this appears to be a regression

Desktop (please complete the following information):

• VS Code Version - 1.95.3
• RobotCode Version - v0.94 and up
• OS: both Win 11 and macOS Sequoia 15.1
• Python Version - 3.12.7
• RobotFramework Version - 7.1.1
• robocop - 5.4.0
• robotidy - 4.14.0