test.osl:17: error: No matching function call to 'funca ()'
  Candidates are:
    test.osl:3	void funca (int, int)
    test.osl:2	void funca (int)
test.osl:18: error: No matching function call to 'funca (int, int, int)'
  Candidates are:
    test.osl:3	void funca (int, int)
    test.osl:2	void funca (int)
test.osl:19: error: No matching function call to 'funca (float, int)'
  Candidates are:
    test.osl:3	void funca (int, int)
    test.osl:2	void funca (int)
test.osl:20: error: No matching function call to 'funca (int, float)'
  Candidates are:
    test.osl:3	void funca (int, int)
    test.osl:2	void funca (int)
test.osl:21: warning: Ambiguous call to 'funcb ()'
  Chosen function is:
    test.osl:6	float funcb ()
  Other candidates are:
    test.osl:5	int funcb ()
    test.osl:7	color funcb ()
test.osl:25: error: Ambiguous call to 'ambig_struct_return ()'
  Candidates are:
    test.osl:13	struct B ambig_struct_return ()
    test.osl:12	struct A ambig_struct_return ()
FAILED test.osl
