2016-07-04 Bob Duff <duff@adacore.com>

	* sem_eval.adb (Decompose_Expr): Set 'out' parameters
	Kind and Cons to valid values, to avoid use of uninit vars.
	(Extract_Length): Reorder the check to make it clearer that
	we're depending on BOTH Ent1 and Ent2 to be Present.
	* sem_aggr.adb (Resolve_Aggregate): Remove dead code.
	(Check_Misspelled_Component): Remove exit statement, because
	it's covered by the 'while' condition.
	* checks.adb (Apply_Selected_Range_Checks): Remove useless
	condition "or else not Checks_On".
	(Selected_Range_Checks):
	Initialize Known_LB and Known_HB to False, because they are
	tested unconditionally; avoid use of uninit vars.
	* frontend.adb (Frontend): Removed useless condition
	"Operating_Mode = Check_Semantics and then", and added an Assert
	to clarify why it was useless.
	* prep.adb (Preprocess): Remove redundant condition. Add an
	assertion.
	* sem_ch10.adb (Analyze_Proper_Body): Moved redundant condition
	"Original_Operating_Mode = Generate_Code" to an Assert.
	(Process_Spec_Clauses, Process_Body_Clauses): Change parameters
	from 'in out' to 'out', and don't initialize actuals.
	* sem_ch12.adb (Is_In_Main_Unit): Removed useless condition
	"Unum = Main_Unit or else".
	(Save_Global_Descendant): Moved
	redundant condition "D = Union_Id (No_List)" to an Assert.
	* sem_ch4.adb (Check_Misspelled_Selector): Remove exit
	statement, because it's covered by the 'while' condition.
	(Analyze_Case_Expression): Initialize Wrong_Alt to Empty,
	because it looks like it is used uninitialized otherwise.
	* sem_ch6.adb (Check_Return_Subtype_Indication): Moved redundant
	condition "not R_Type_Is_Anon_Access" to an Assert.
	* sem_elim.adb (Line_Num_Match): Moved redundant condition
	"Sloc_Trace (Idx) = '['" to an Assert.
	* sem_util.adb (Compile_Time_Constraint_Error): Change "J" to
	"J - 1". This code is trying to replace "?" with "<", but not if
	the "?" is quoted, as in "'?", so we want to check the PREVIOUS
	character for '''.
	* snames.adb-tmpl (Is_Pragma_Name): Remove useless condition
	"or else N = Name_Relative_Deadline". It's useless because
	Name_Relative_Deadline is in the range First_Pragma_Name
	.. Last_Pragma_Name.
	* treepr.adb (Visit_Node): Moved redundant condition "D =
	Union_Id (No_List)" to an Assert.
	* sem_ch3.adb (Derive_Subprogram, Derive_Subprograms): Change
	parameters from 'in out' to 'out'.
	* errout.adb (Error_Msg_Internal): Replace redundant test with Assert.
	* inline.adb (Add_Inlined_Body): Code cleanup.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@237972 138bc75d-0d04-0410-961f-82ee72b054a4

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