Mark conflicts between newer packages and Intel 14 compilers (#13729)

* Mark compiler/version conflict for CMake

Intel 14 lacks some C++11 features needed to compile new versions of
cmake.
```
/tmp/s3j/spack-stage/spack-stage-cmake-3.15.5-46lgp4ybhopy2p4rr66rxnew5iaddvmg/spack-src/Source/
cm_static_string_view.hxx(28): error: expected an operator
   friend static_string_view operator"" _s(const char* data, size_t
                                     ^
```

* Mark compiler/version conflict for icu4c

With Intel 14.0.4 on Linux for icu4c 60.1 and higher:
```
locid.cpp(1156): error #1140: a using-declaration may not name a constructor or destructor
        using KeywordEnumeration::KeywordEnumeration;
```

* Mark compiler/version conflict for nasm

Error installing `nasm@2.14.02%intel@14.0.4`:
```
In file included from nasmlib/crc64.c(35):
./include/nasmlib.h(116): error: expected a ";"
  fatal_func nasm_assert_failed(const char *, int, const char *);
```

* Mark compiler/version conflict for bison

Installing `bison@3.4.2%intel@14.0.4`:
```
In file included from /tmp/s3j/spack-stage/spack-stage-bison-3.4.2-
uzjszv4owvqsymjpxtxvvegfavc6k5my/spack-src/lib/quotearg.c(33):
/tmp/s3j/spack-stage/spack-stage-bison-3.4.2-uzjszv4owvqsymjpxtxvvegfavc6k5my/spack-src/lib/
xalloc.h(51): warning #303: explicit type is missing ("int" assumed)
  extern _Noreturn void xalloc_die (void);
```

* Mark compiler/version conflict for icu4c

With `icu4c@60.1%intel@16.0.4` and `icu4c@64.1%intel@16.0.4`:

```
In file included from ucurr.cpp(26):
static_unicode_sets.h(130): error #913: invalid multibyte character sequence
      {POUND_SIGN, u'£'},
                     ^
```

* Change conflict comments into messages

0 files changed, 0 insertions, 0 deletions