[NFC][llvm] Inclusive language: replace master with main in 2007-04-0…

…2-RegScavengerAssert.ll

[NFC] As part of using inclusive language within the llvm project, this patch
replaces master with main in `2007-04-02-RegScavengerAssert.ll`.

Reviewed By: dblaikie

Differential Revision: https://reviews.llvm.org/D114276

llvm/test/CodeGen/ARM/2007-04-02-RegScavengerAssert.ll

@@ -8,9 +8,9 @@
 	%struct.X_c_prep_ccler = type { void (%struct.X_Y*, i32)*, void (%struct.X_Y*, i8**, i32*, i32, i8***, i32*, i32)* }
 	%struct.X_color_converter = type { void (%struct.X_Y*)*, void (%struct.X_Y*, i8**, i8***, i32, i32)* }
 	%struct.X_common_struct = type { %struct.X_error_mgr*, %struct.X_memory_mgr*, %struct.X_progress_mgr*, i8*, i32, i32 }
-	%struct.X_comp_master = type { void (%struct.X_Y*)*, void (%struct.X_Y*)*, void (%struct.X_Y*)*, i32, i32 }
+	%struct.X_comp_main = type { void (%struct.X_Y*)*, void (%struct.X_Y*)*, void (%struct.X_Y*)*, i32, i32 }
 	%struct.X_component_info = type { i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, %struct.Q_TBL*, i8* }
-	%struct.X_Y = type { %struct.X_error_mgr*, %struct.X_memory_mgr*, %struct.X_progress_mgr*, i8*, i32, i32, %struct.X_destination_mgr*, i32, i32, i32, i32, double, i32, i32, i32, %struct.X_component_info*, [4 x %struct.Q_TBL*], [4 x %struct.H_TBL*], [4 x %struct.H_TBL*], [16 x i8], [16 x i8], [16 x i8], i32, %struct.X_scan_info*, i32, i32, i32, i32, i32, i32, i32, i32, i32, i8, i8, i8, i16, i16, i32, i32, i32, i32, i32, i32, i32, [4 x %struct.X_component_info*], i32, i32, i32, [10 x i32], i32, i32, i32, i32, %struct.X_comp_master*, %struct.X_c_main_ccler*, %struct.X_c_prep_ccler*, %struct.X_c_coef_ccler*, %struct.X_marker_writer*, %struct.X_color_converter*, %struct.X_downssr*, %struct.X_forward_D*, %struct.X_entropy_en*, %struct.X_scan_info*, i32 }
+	%struct.X_Y = type { %struct.X_error_mgr*, %struct.X_memory_mgr*, %struct.X_progress_mgr*, i8*, i32, i32, %struct.X_destination_mgr*, i32, i32, i32, i32, double, i32, i32, i32, %struct.X_component_info*, [4 x %struct.Q_TBL*], [4 x %struct.H_TBL*], [4 x %struct.H_TBL*], [16 x i8], [16 x i8], [16 x i8], i32, %struct.X_scan_info*, i32, i32, i32, i32, i32, i32, i32, i32, i32, i8, i8, i8, i16, i16, i32, i32, i32, i32, i32, i32, i32, [4 x %struct.X_component_info*], i32, i32, i32, [10 x i32], i32, i32, i32, i32, %struct.X_comp_main*, %struct.X_c_main_ccler*, %struct.X_c_prep_ccler*, %struct.X_c_coef_ccler*, %struct.X_marker_writer*, %struct.X_color_converter*, %struct.X_downssr*, %struct.X_forward_D*, %struct.X_entropy_en*, %struct.X_scan_info*, i32 }
 	%struct.X_destination_mgr = type { i8*, i32, void (%struct.X_Y*)*, i32 (%struct.X_Y*)*, void (%struct.X_Y*)* }
 	%struct.X_downssr = type { void (%struct.X_Y*)*, void (%struct.X_Y*, i8***, i32, i8***, i32)*, i32 }
 	%struct.X_entropy_en = type { void (%struct.X_Y*, i32)*, i32 (%struct.X_Y*, [64 x i16]**)*, void (%struct.X_Y*)* }