Basic tests for cutoff options in show command.

RUN: llvm-profdata show -value-cutoff=1 %p/Inputs/cutoff.proftext | FileCheck %s -check-prefix=CUTOFF1 -check-prefix=CHECK
RUN: llvm-profdata show -value-cutoff=1000 %p/Inputs/cutoff.proftext | FileCheck %s -check-prefix=CUTOFF1000 -check-prefix=CHECK
RUN: llvm-profdata show -all-functions -value-cutoff=1 %p/Inputs/cutoff.proftext | FileCheck %s -check-prefix=CUTOFF1FUNC -check-prefix=CUTOFF1 -check-prefix=CHECK
RUN: llvm-profdata show -all-functions -value-cutoff=1000 %p/Inputs/cutoff.proftext | FileCheck %s -check-prefix=CUTOFF1000FUNC -check-prefix=CUTOFF1000 -check-prefix=CHECK
RUN: llvm-profdata show -value-cutoff=1 -list-below-cutoff %p/Inputs/cutoff.proftext | FileCheck %s -check-prefix=BELOW1 -check-prefix=CUTOFF1 -check-prefix=CHECK
RUN: llvm-profdata show -value-cutoff=1000 -list-below-cutoff %p/Inputs/cutoff.proftext | FileCheck %s -check-prefix=BELOW1000 -check-prefix=CUTOFF1000 -check-prefix=CHECK
CUTOFF1FUNC-NOT: bar
CUTOFF1FUNC: Functions shown: 2
CUTOFF1000FUNC-NOT: bar
CUTOFF1000FUNC-NOT: foo
CUTOFF1000FUNC: Functions shown: 1
BELOW1: The list of functions with the maximum counter less than 1:
BELOW1:  bar: (Max = 0 Sum = 0)
BELOW1000:The list of functions with the maximum counter less than 1000:
BELOW1000:  bar: (Max = 0 Sum = 0)
BELOW1000:  foo: (Max = 999 Sum = 1000)
CHECK: Total functions: 3
CUTOFF1: Number of functions with maximum count (< 1): 1
CUTOFF1: Number of functions with maximum count (>= 1): 2
CUTOFF1000: Number of functions with maximum count (< 1000): 2
CUTOFF1000: Number of functions with maximum count (>= 1000): 1