title: Xcode 7.3 crashing when debugging with breakpoints
body: <p>I just install the Xcode 7.3 version. I can't debug at all because it's crashing when I try to use a breakpoint while I'm debugging. I tried removing Derive Data, Reboot my macbook, reinstall pods... but unfortunately nothing is working. Is someone having the same issue?</p>
  
  <blockquote>
    <p>Process:               Xcode [2631]
    Path:                  /Applications/Xcode.app/Contents/MacOS/Xcode
    Identifier:            com.apple.dt.Xcode
    Version:               7.3 (10183.3)
    Build Info:            IDEFrameworks-10183003000000000~2
    App Item ID:           497799835
    App External ID:       816750016
    Code Type:             X86-64 (Native)
    Parent Process:        ??? [1]
    Responsible:           Xcode [2631]
    User ID:               502</p>
    
    <p>Date/Time:             2016-03-22 17:35:16.678 +0000
    OS Version:            Mac OS X 10.11.4 (15E65)
    Report Version:        11
    Anonymous UUID:        352BCE12-8AEF-A28A-B5F1-214B55269668</p>
    
    <p>Time Awake Since Boot: 2500 seconds</p>
    
    <p>System Integrity Protection: enabled</p>
    
    <p>Crashed Thread:        30    Dispatch queue: DVTInvalidationPreventionQueue</p>
    
    <p>Exception Type:        EXC_BAD_ACCESS (SIGSEGV)
    Exception Codes:       KERN_INVALID_ADDRESS at 0x0000000000000000
    Exception Note:        EXC_CORPSE_NOTIFY</p>
    
    <p>VM Regions Near 0:
    --> 
        __TEXT                 00000001021a4000-00000001021a8000 [   16K] r-x/rwx SM=COW  /Applications/Xcode.app/Contents/MacOS/Xcode</p>
    
    <p>Application Specific Information:
    ProductBuildVersion: 7D175</p>
    
    <p>Global Trace Buffer (reverse chronological seconds):
    14.418349    DTXConnectionServices      0x000000010454fc3a initiating channel x1.c2 capability 642d65677561672d 766f72702d617461 654e2e7372656469 6174536b726f7774 0073636974736974
    14.419261    DTXConnectionServices      0x000000010454fc3a initiating channel x1.c1 capability 756265642e65646f 2d65677561672d67 6f72702d61746164 702e737265646976 006f666e69636f72
    71.740178    CFNetwork                  0x00007fff8d398447 TCP Conn 0x7fe21e691b50 SSL Handshake DONE
    72.390183    CFNetwork                  0x00007fff8d398323 TCP Conn 0x7fe21e691b50 starting SSL negotiation
    72.390333    CFNetwork                  0x00007fff8d396ced TCP Conn 0x7fe21e691b50 complete. fd: 50, err: 0
    72.390574    CFNetwork                  0x00007fff8d4255c7 TCP Conn 0x7fe21e691b50 event 1. err: 0
    72.582281    CFNetwork                  0x00007fff8d395fbf TCP Conn 0x7fe21e691b50 started
    72.628957    CFNetwork                  0x00007fff8d359c42 Creating default cookie storage with process/bundle identifier
    72.628957    CFNetwork                  0x00007fff8d359bda Faulting in CFHTTPCookieStorage singleton
    72.628976    CFNetwork                  0x00007fff8d359a69 Faulting in NSHTTPCookieStorage singleton
    72.650686    CFNetwork                  0x00007fff8d457510 NSURLConnection finished with error - code -1100</p>
    
    <p>Crashed Thread:        30    Dispatch queue: DVTInvalidationPreventionQueue</p>
    
    <p>Exception Type:        EXC_BAD_ACCESS (SIGSEGV)
    Exception Codes:       KERN_INVALID_ADDRESS at 0x0000000000000000
    Exception Note:        EXC_CORPSE_NOTIFY</p>
    
    <p>Thread 30 crashed with X86 Thread State (64-bit):
      rax: 0x0000000000000000  rbx: 0x0000700003900628  rcx: 0x0000700003900338  rdx: 0x00007fe225f6d940
      rdi: 0x0000700003900338  rsi: 0x000000000000003e  rbp: 0x00007000039005f0  rsp: 0x00007000039003f0
       r8: 0x0000000000000000   r9: 0x00007fe215375800  r10: 0xf6c0d10bcec3bd6e  r11: 0x00007fe214fa1000
      r12: 0x0000700003900628  r13: 0x0000000000000000  r14: 0x0000000000000001  r15: 0x00007fe215375800
      rip: 0x000000010e3ae917  rfl: 0x0000000000000246  cr2: 0x0000000000000000</p>
  </blockquote>