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If a variable reference to a field is to an array, and it is the only reference to that field in that method we cannot make it an inlined [set foo] call as the regexp was converting the Tcl code wrong. We were producing "[set foo](x)" for "$foo(x)", and that isn't valid Tcl when foo is an array. So we just punt if the only occurance has a ( after it. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>