Enable typeParameterHiding ECJ problem check

Author: pzygielo

mq/.ecj/ecj.prefs

@@ -85,7 +85,7 @@ org.eclipse.jdt.core.compiler.problem.suppressWarningsNotFullyAnalysed=ignore
 org.eclipse.jdt.core.compiler.problem.syntacticNullAnalysisForFields=error
 org.eclipse.jdt.core.compiler.problem.syntheticAccessEmulation=ignore
 org.eclipse.jdt.core.compiler.problem.terminalDeprecation=ignore
-org.eclipse.jdt.core.compiler.problem.typeParameterHiding=ignore
+org.eclipse.jdt.core.compiler.problem.typeParameterHiding=error
 org.eclipse.jdt.core.compiler.problem.unavoidableGenericTypeProblems=error
 org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=ignore
 org.eclipse.jdt.core.compiler.problem.unclosedCloseable=ignore