Do not set source locations for small internal assembly routines.

libyul/AsmParser.h

@@ -46,8 +46,15 @@ public:
 		None, ForLoopPre, ForLoopPost, ForLoopBody
 	};
 
-	explicit Parser(langutil::ErrorReporter& _errorReporter, Dialect const& _dialect):
-		ParserBase(_errorReporter), m_dialect(_dialect) {}
+	explicit Parser(
+		langutil::ErrorReporter& _errorReporter,
+		Dialect const& _dialect,
+		std::optional<langutil::SourceLocation> _locationOverride = {}
+	):
+		ParserBase(_errorReporter),
+		m_dialect(_dialect),
+		m_locationOverride(std::move(_locationOverride))
+	{}
 
 	/// Parses an inline assembly block starting with `{` and ending with `}`.
 	/// @param _reuseScanner if true, do check for end of input after the `}`.
@@ -60,6 +67,11 @@ public:
 protected:
 	using ElementaryOperation = std::variant<Literal, Identifier, FunctionCall>;
 
+	langutil::SourceLocation currentLocation() const override
+	{
+		return m_locationOverride ? *m_locationOverride : ParserBase::currentLocation();
+	}
+
 	/// Creates an inline assembly node with the current source location.
 	template <class T> T createWithLocation() const
 	{
@@ -91,6 +103,7 @@ protected:
 
 private:
 	Dialect const& m_dialect;
+	std::optional<langutil::SourceLocation> m_locationOverride;
 	ForLoopComponent m_currentForLoopComponent = ForLoopComponent::None;
 	bool m_insideFunction = false;
 };