[DirectX] Use "texture" not "SRV" when pretty printing resources

We're printing "SRV" here when DXC would print "texture". Fix this to be
consistent.

Fixes #130227.

Author: bogner

llvm/lib/Target/DirectX/DXILPrettyPrinter.cpp

@@ -23,7 +23,7 @@ using namespace llvm;
 static StringRef getRCName(dxil::ResourceClass RC) {
   switch (RC) {
   case dxil::ResourceClass::SRV:
-    return "SRV";
+    return "texture";
   case dxil::ResourceClass::UAV:
     return "UAV";
   case dxil::ResourceClass::CBuffer:

llvm/test/CodeGen/DirectX/CreateHandle.ll

@@ -3,10 +3,10 @@
 
 ; CHECK-PRETTY:       Type  Format         Dim      ID      HLSL Bind     Count
 ; CHECK-PRETTY: ---------- ------- ----------- ------- -------------- ---------
-; CHECK-PRETTY:        SRV     f32         buf      T0      t7        unbounded
-; CHECK-PRETTY:        SRV    byte         r/o      T1      t8,space1         1
-; CHECK-PRETTY:        SRV  struct         r/o      T2      t2,space4         1
-; CHECK-PRETTY:        SRV     u32         buf      T3      t3,space5        24
+; CHECK-PRETTY:    texture     f32         buf      T0      t7        unbounded
+; CHECK-PRETTY:    texture    byte         r/o      T1      t8,space1         1
+; CHECK-PRETTY:    texture  struct         r/o      T2      t2,space4         1
+; CHECK-PRETTY:    texture     u32         buf      T3      t3,space5        24
 ; CHECK-PRETTY:        UAV     i32         buf      U0      u7,space2         1
 ; CHECK-PRETTY:        UAV     f32         buf      U1      u5,space3         1
 

llvm/test/CodeGen/DirectX/CreateHandleFromBinding.ll

@@ -3,10 +3,10 @@
 
 ; CHECK-PRETTY:       Type  Format         Dim      ID      HLSL Bind     Count
 ; CHECK-PRETTY: ---------- ------- ----------- ------- -------------- ---------
-; CHECK-PRETTY:        SRV     f32         buf      T0      t7        unbounded
-; CHECK-PRETTY:        SRV    byte         r/o      T1      t8,space1         1
-; CHECK-PRETTY:        SRV  struct         r/o      T2      t2,space4         1
-; CHECK-PRETTY:        SRV     u32         buf      T3      t3,space5        24
+; CHECK-PRETTY:    texture     f32         buf      T0      t7        unbounded
+; CHECK-PRETTY:    texture    byte         r/o      T1      t8,space1         1
+; CHECK-PRETTY:    texture  struct         r/o      T2      t2,space4         1
+; CHECK-PRETTY:    texture     u32         buf      T3      t3,space5        24
 ; CHECK-PRETTY:        UAV     i32         buf      U0      u7,space2         1
 ; CHECK-PRETTY:        UAV     f32         buf      U1      u5,space3         1
 ; CHECK-PRETTY:    cbuffer      NA          NA     CB0            cb0         1