Turn PHI analyzer to a simple pre-pass

Rather than having a dynamic analyzer around that is handcuffed by
only global values, invoke it as a prepass in VRP and put all values it finds
in the query's global cache via update_range_info.

	gcc/
	* gimple-range-fold.cc (fold_using_range::range_of_phi): Remove
	the PHI analysis query.
	* gimple-range-phi.cc (phi_analysis_object): Delete.
	(phi_analysis_initialize): Delete.
	(phi_analysis_finalize): Delete.
	(phi_analysis_available_p): Delete.
	(phi_analysis): Invoke a phi analyzer.
	(phi_analyzer::phi_analyzer): Preprocess all phi nodes and set
	global values for them in a query.
	(phi_analyzer::process_phi): Use query, and export any inital
	values found to the query.
	* gimple-range-phi.h (m_global): Delete.
	(phi_analysis_initialize): Delete.
	(phi_analysis_finalize): Delete.
	(phi_analysis_available_p): Delete.
	(phi_analysis): Change prototype.
	* tree-vrp.cc (execute_ranger_vrp): Call phi_analysis.

	gcc/testsuite/
	* gcc.dg/pr102983.c: Adjust final check.

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