Description:

  API for LocalVariable.isVisible(StackFrame) states that
  "Returns:
          true if this variable is visible; false otherwise.
     Throws:
          IllegalArgumentException - if the stack frame's method does not match
          this variable's method."
  But IllegalArgumentException is not thrown when StackFrame and LocalVariable
  methods do not match, instead it returns false.
  
  Scenario:
  ---------
  Debugger - LocalVisibleTest.java
  Debugee - LocalTest.java
  
  ***Should throw IllegalArgumentException for variable1(class1) in testMethod1
  which is not visible for the StackFrame of method testMethod2 as the variable
  and StackFrame are for different methods. But it returns false.

  The following scenarios work fine:
  Returns true for variable1(u) which is visible for the StackFrame for
  method testMethod1.
  Returns false for variable1(q) which is not visible for the
  StackFrame for method testMethod1.
  
  ***Testing done in JDK 1.3.0rc2-Y & JDK1.4.0beta-F-Hotspot and Classic
  VM(WinNT )
  Testing done in JDK 1.3.0rc2-Y Hotspot and Classic VM (Solaris2.7)

 Steps to reproduce the bug
 ---------------------------
 The bug can be reproduced using the files in the location
 /net/sqesvr/export/disk5/toolsbugs/4327739
 Follow the instructions in README to reproduce the bug.