adjust dinst.adb's expectations for location views

The testcase failed when the compiler used .loc view syntax, because
it expected discriminators at the end of the .loc lines.

for  gcc/testsuite/ChangeLog

	* gnat.dg/dinst.adb: Adjust for locviews.

From-SVN: r264583

gcc/testsuite/ChangeLog

+2018-09-25  Alexandre Oliva <oliva@adacore.com>
+
+	* gnat.dg/dinst.adb: Adjust for locviews.
+
 2018-09-25  Will Schmidt  <will_schmidt@vnet.ibm.com>
 
 	* g++.dg/ext/altivec-6.C: Updated vec_splat() calls.

gcc/testsuite/gnat.dg/dinst.adb

 -- { dg-do compile { target *-*-gnu* } }
 -- { dg-options "-gnateS -gdwarf -g -O -gno-column-info" }
--- { dg-final { scan-assembler "loc \[0-9] 5 \[0-9]( is_stmt \[0-9])? discriminator 1\n" } } */
--- { dg-final { scan-assembler-not "loc \[0-9] 5 \[0-9]( is_stmt \[0-9])? discriminator 2\n" } } */
--- { dg-final { scan-assembler "loc \[0-9] 5 \[0-9]( is_stmt \[0-9])? discriminator 3\n" } } */
--- { dg-final { scan-assembler "loc \[0-9] 5 \[0-9]( is_stmt \[0-9])? discriminator 4\n" } } */
+-- { dg-final { scan-assembler "loc \[0-9] 5 \[0-9]( is_stmt \[0-9])? discriminator 1\[ \n]" } } */
+-- { dg-final { scan-assembler-not "loc \[0-9] 5 \[0-9]( is_stmt \[0-9])? discriminator 2\[ \n]" } } */
+-- { dg-final { scan-assembler "loc \[0-9] 5 \[0-9]( is_stmt \[0-9])? discriminator 3\[ \n]" } } */
+-- { dg-final { scan-assembler "loc \[0-9] 5 \[0-9]( is_stmt \[0-9])? discriminator 4\[ \n]" } } */
 
 
 with DInst_Pkg;