Better error message when param type incompatibility

  @Test public void test() {
    CalciteAssert.model(HR_FKUK_MODEL)
      .query("select * from \"events\" where \"eventid\"='123'")
      .returns(CalciteAssert.outputResult());
  }

Caused by: org.codehaus.commons.compiler.CompileException: Line 13, Column 100: Cannot compare types "int" and "java.lang.String"
	at org.codehaus.janino.UnitCompiler.compileError(UnitCompiler.java:12211)
	at org.codehaus.janino.UnitCompiler.compileBoolean2(UnitCompiler.java:4239)
	at org.codehaus.janino.UnitCompiler.access$6600(UnitCompiler.java:215)
	at org.codehaus.janino.UnitCompiler$14.visitBinaryOperation(UnitCompiler.java:3957)
	at org.codehaus.janino.UnitCompiler$14.visitBinaryOperation(UnitCompiler.java:3935)
	at org.codehaus.janino.Java$BinaryOperation.accept(Java.java:4864)
	at org.codehaus.janino.UnitCompiler.compileBoolean(UnitCompiler.java:3935)
	at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java:2475)