Revert of [turbofan] Support variable size argument popping in TF-generated functions

test/unittests/compiler/instruction-selector-unittest.cc

Index: test/unittests/compiler/instruction-selector-unittest.cc
diff --git a/test/unittests/compiler/instruction-selector-unittest.cc b/test/unittests/compiler/instruction-selector-unittest.cc
index f9a3f2267f204bc364c2a31370a5014290845f53..18ccaaaea5acc70f6c4acac88f4647e4f75bbfef 100644
--- a/test/unittests/compiler/instruction-selector-unittest.cc
+++ b/test/unittests/compiler/instruction-selector-unittest.cc
@@ -166,7 +166,7 @@
   ASSERT_EQ(InstructionOperand::CONSTANT, s[0]->OutputAt(0)->kind());
   EXPECT_FLOAT_EQ(kValue, s.ToFloat32(s[0]->OutputAt(0)));
   EXPECT_EQ(kArchRet, s[1]->arch_opcode());
-  EXPECT_EQ(2U, s[1]->InputCount());
+  EXPECT_EQ(1U, s[1]->InputCount());
 }
 
 
@@ -178,7 +178,7 @@
   EXPECT_EQ(kArchNop, s[0]->arch_opcode());
   ASSERT_EQ(1U, s[0]->OutputCount());
   EXPECT_EQ(kArchRet, s[1]->arch_opcode());
-  EXPECT_EQ(2U, s[1]->InputCount());
+  EXPECT_EQ(1U, s[1]->InputCount());
 }
 
 
@@ -192,7 +192,7 @@
   EXPECT_EQ(InstructionOperand::CONSTANT, s[0]->OutputAt(0)->kind());
   EXPECT_EQ(0, s.ToInt32(s[0]->OutputAt(0)));
   EXPECT_EQ(kArchRet, s[1]->arch_opcode());
-  EXPECT_EQ(2U, s[1]->InputCount());
+  EXPECT_EQ(1U, s[1]->InputCount());
 }
 
 
@@ -251,7 +251,7 @@
   ASSERT_TRUE(s[0]->Output()->IsUnallocated());
   EXPECT_EQ(kArchRet, s[1]->arch_opcode());
   EXPECT_EQ(s.ToVreg(param), s.ToVreg(s[0]->Output()));
-  EXPECT_EQ(s.ToVreg(param), s.ToVreg(s[1]->InputAt(1)));
+  EXPECT_EQ(s.ToVreg(param), s.ToVreg(s[1]->InputAt(0)));
   EXPECT_TRUE(s.IsReference(finish));
 }