default ExpressionMatcher<PatternExpression> var() {
			return AnyMatcher.any();
		}
Match any expression

<p>
This matches any expression without consideration of its operands, except insofar when it
appears in multiple places, it will check that subsequent matches are identical to the
first.

@return the matcher
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/app/plugin/assembler/sleigh/expr/match/ExpressionMatcher.java