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We should not mix "syntactic" and "semantic" for the same field in different node kinds. Change the name of Default_Expression (a syntactic field) on N_Formal_Object_Declaration to be Expression. This avoids the conflict with the name-named semantic field of N_Parameter_Specification. It is also more uniform with other syntactic categories that use default_expression in the syntax rules. See, for example, COMPONENT_DECLARATION in sinfo.ads, which is presumably intended to be uniform with OBJECT_DECLARATION. Fix the comment on N_Formal_Object_Declaration to refer to the new field name Expression. gcc/ada/ChangeLog: * gen_il-gen-gen_nodes.adb: Rename Default_Expression to be Expression. * gen_il-gen.adb (Check_For_Syntactic_Field_Mismatch): Do not exempt Default_Expression from the rule. * par-ch12.adb (P_Formal_Object_Declarations): Use renamed setter. * sem_ch12.adb (Default): Use renamed getter. (Analyze_Formal_Object_Declaration): Likewise. * sprint.adb (Sprint_Node_Actual): Use renamed getter. * sinfo.ads: Fix comments.
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