Initialize boolean flag correctly

gcc/rust/ChangeLog:

	* hir/rust-ast-lower-pattern.cc (ASTLoweringPattern::ASTLoweringPattern):
	flag was not initialized in the constructor.

Signed-off-by: Pierre-Emmanuel Patry <[email protected]>

Author: P-E-P

gcc/rust/hir/rust-ast-lower-pattern.cc

@@ -23,7 +23,9 @@
 namespace Rust {
 namespace HIR {
 
-ASTLoweringPattern::ASTLoweringPattern () : translated (nullptr) {}
+ASTLoweringPattern::ASTLoweringPattern ()
+  : translated (nullptr), is_let_top_level (false)
+{}
 
 HIR::Pattern *
 ASTLoweringPattern::translate (AST::Pattern &pattern, bool is_let_top_level)